Gr8 Garden Patio Outdoor Large Black Metal Decorative Loire Arch Wedding Rose Archway Ornament Arbour Pergola For Climbing Plants Trellis Support. The Gr8 Garden Rose arch is a decorative styled black metal Loire arch which, standing alone would make a stunning feature, adding style and grace almost anywhere in the garden and looking beautiful when covered with greenery and blossom. Made from strong tubular steel with an attractive finish, ground spikes for easy installation and easy-to-follow instructions for assembly are included. This metal garden arch offers a classic yet timeless feature to your garden.